Apache OpenOffice up to 4.1.15 iFrame improper authorization

Summaryinfo

A vulnerability identified as critical has been detected in Apache OpenOffice up to 4.1.15. Affected is an unknown function of the component iFrame Handler. This manipulation causes improper authorization. The identification of this vulnerability is CVE-2025-64401. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Apache OpenOffice up to 4.1.15. It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component iFrame Handler. The manipulation with an unknown input leads to a improper authorization vulnerability. The CWE definition for the vulnerability is CWE-285. The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Apache OpenOffice documents can contain links. A missing Authorization vulnerability in Apache OpenOffice allowed an attacker to craft a document that would cause external links to be loaded without prompt. In the affected versions of Apache OpenOffice, documents that used "floating frames" linked to external files would load the contents of those frames without prompting the user for permission to do so. This issue affects Apache OpenOffice: through 4.1.15. Users are recommended to upgrade to version 4.1.16, which fixes the issue. The LibreOffice suite reported this issue as CVE-2023-2255

The advisory is shared at lists.apache.org. This vulnerability is known as CVE-2025-64401. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 11/15/2025). MITRE ATT&CK project uses the attack technique T1548.002 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 275412 (Apache OpenOffice < 4.1.16 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 4.1.16 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (275412) and CERT Bund (WID-SEC-2025-2577). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

• Apache OpenOffice

Productinfo

Type

• Office Suite Software

Vendor

• Apache

Name

• OpenOffice

Version

• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.1.5
• 4.1.6
• 4.1.7
• 4.1.8
• 4.1.9
• 4.1.10
• 4.1.11
• 4.1.12
• 4.1.13
• 4.1.14
• 4.1.15

License

• open-source

Website

• Vendor: https://www.apache.org/

CPE 2.3info

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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